Mongoose - Set TTL on MongoDB Document

Question

I am trying to set a TTL via mongoose when a document is created in MongoDB, but I'm not having any luck with any of my attempts. Latest version of mongoose is being used in my project and from what I can tell I've tried the most common answers here on SO and elsewhere online.

My Schema

const mongoose = require('mongoose');

const jobSchema = new mongoose.Schema(
    {
        positionTitle: {
            type: String,
        },
        description: {
            type: String,
        }
    });

const Jobs = mongoose.model('job', jobSchema);

module.exports = Jobs;

I have tried adding a createdAt with expires based on this question answer:

const jobSchema = new mongoose.Schema({
    positionTitle: {
        type: String,
    },
    description: {
        type: String,
    },
    createdAt: { type: Date, expires: 3600 },
});

Along with this option that's also in the same question to have createdAt be created automatically via timestamps:

const jobSchema = new mongoose.Schema(
    {
        positionTitle: {
            type: String,
        },
        description: {
            type: String,
        },
    },
    { timestamps: true }
);

Trying variations of the following to set an index with timestamps defined:
jobSchema.index({ createdAt: 1 }, { expires: 86400 });
jobSchema.index({ createdAt: 1 }, { expires: '1 day' });
jobSchema.index({ createdAt: 1 }, { expireAfterSeconds: 3600 });

Regardless of which option I try, the document is removed after MongoDB's 60-second cycle when a createdAt field is set on the document. Would really love to know what I'm doing wrong.

Answer 1

After trying all the solutions in the thread you mentioned, none of them worked. In the end this code did the trick. It involves setting the expireAt field to the actual time that you want it deleted, which makes sense really.

const Schema = mongoose.Schema;

const YourSchema = new Schema({
 expireAt: {
   type: Date,
   default: Date.now() + 10 * 60 * 1000   // expires in 10 minutes
 },
});

This is the only thing that worked, all the other solutions I tried always deleted after 1min, no matter the amount of time I added.